According to experts' estimation, there are only 500 monk seals in the world, living in the Mediterranean, which are killed by fishermen in large numbers due to the deterioration of seawater and beach ecological environment. At present, sRidleyTurtle of L. Kemp is the only animal whose number is increasing among the two most endangered animals in the world 12. It takes 1 1-35 years to grow. 12 world endangered animal species 1. Alias baiji and baiji belong to Cetaceae, and the scientific name is LipotesvexilliferMiller, which belongs to Cetaceans and baiji. The distinctive feature is that the snout is long and narrow, about 300 mm long. The forehead is round and high. The dorsal fin is triangular, located in 3/5 of the body, and has a low skin ridge connected with the caudal fin. There is a breathing hole on the left side of the head that can be opened and closed freely. The caudal fin is horizontal, concave to the edge and crescent-shaped. The population of baiji dolphin is very small, which is a rare aquatic animal endemic to China and needs to be protected urgently. Produced in the middle and lower reaches of the Yangtze River in the main streams of Hubei, Anhui and Jiangsu. They have lived in the Yangtze River for about 25 million years and are called "living fossils". Because of its small number, it is listed as a national first-class protected wild animal. 2. There are only 20 wild Sumatran tigers. With the extinction of Barry Tiger and Sea Tiger in the 1940s and 1970s, it is predicted that this species will also disappear from the earth in the near future. 3. Garamba National Park in Congo There are less than 25 northern white rhinos left in the world, and it is possible that the northern white rhinoceros will completely disappear from the earth. There are great genetic differences between northern white rhinoceros and southern African white rhinoceros. They once multiplied in Uganda, but gradually disappeared due to neglect of local protection. In Guaramba National Park, their number reached 35 in the late 1980s and 30 in April 2003. Then six were killed and four were born. Last month, two elephants were hunted and nearly 1000 elephants were killed. 4.Orinocidae crocodile fish: the largest carnivore in South America and one of the most endangered species on the planet 12. 5.monachus-monachus ormonkseal According to experts' estimation, there are only 500 in the world, living in the Mediterranean Sea, and being affected by the deterioration of seawater and beach ecological environment, they are killed in large numbers by fishermen. 6. The mouse lemur is the smallest monkey in the world and lives in Madagascar. 7. Among the 12 most endangered animals in the world, sRidleyTurtle of L. Kemp is the only one with an increasing number. It takes 1 1-35 years to grow. 8. Only 250-700 Orinocidaceae crocodiles live in the wild. Mainly in Cuba and Venezuela. 9 Thai pig-nosed bat 10. Hawaiian snail 1 1. Minipig (scientific name Sussalvanius) is the smallest pig in the world, a kind of wild boar, mainly living in northeast India. It is 60 cm long and 25 cm high, and the adult pig is less than 10 kg. It used to be abundant in the Himalayas, but now only Manas National Park in Assa, India has a small amount. Its genes are not much different from those of domestic pigs. 12. bicks parrot: In the wild, bicks parrot is not completely extinct, but it is extremely rare. In 1990, ornithologists looking for this bird only found a surviving male bird, living in the distant northeast of Brazil. At present, about 3 1 bird captured by humans is the only hope for this bird to survive.